I have a few fictional particles in my setting that can do many things, however getting them do something specific is the challenging part. There are a class of particles that only work while in the presence of a certain field.
This field is generated by the particle posed in this question, it radiates a special type of field (think electric or magnetic) when oscillating within certain parameters. Factors such as strength and radius are all dependent on the characteristics of the oscillation. This field is mainly used to control the behavior of other particles.
However, unlike normal fields, the quadrants of this field can be controlled. One can essentially subtract pieces of a field. We can define a field as a circle in simple geometric terms. Circles have 4 quarters to them, or quadrants (cartesian graphs also have quadrants). Normally a field has its effects distributed in some uniform fashion. But with this particle, you can generate a "field" where a quadrant/quarter is seemingly missing. Or two. Basically, you'd have a semi-circle, or a quarter circle left. Think of it like taking a piece out of a pie. What's left is the field.
The particle bounces all over the place randomly inside a containment chamber. This is in fact its natural behavior. However, because it's bouncing around randomly, it can't create a field. It needs a certain oscillation with periodicity within a certain interval to generate a field.
Controlling this particle has proven to be a nightmare. Using existing computers and machinery to try and get the particle to move with a certain oscillation in a certain path has proven fruitless. Either it never moves, or computers and their sensors aren't able to monitor it. That was until someone decided to use a bio-organic computer to manipulate it.
The word computer is a bit of a misnomer since it's actually a living organism technically. It interfaces with a human brain to read signals, using them as inputs to calculate things or send output signals. The longer this bio-computer trains with a human, the more accurate it becomes in interpreting what a person is trying to do.
The link is only one way though. A person can only send information and thoughts to this computer. The computer can't send thoughts back to a human brain. Thus, output is fed into wired interfaces that can connect to a computer. Information can come out in the form of either discrete or analog signals. The organism itself can store its own information and can create its own memories. This is in fact how it learns to interpret a person's thoughts much better.
For example, if someone were to think of the statement "5 + 3 is?" the bio computer can spit out 8 in either an analog or digital signal. Of course, it can do more than just math operations since it can be used in basic control systems. For example, someone could instruct it to move the particle in a specific direction or at a certain frequency to create a new field.
The way this computer forces this particle to move about is essentially by having a particle move in a very small organic tube of sorts (think like neurons or ion channels). Like light in fiber optic cables, the particle bounces like crazy in this tube which contorts into the shape of a certain frequency/wave. After a few laps, the particle slowly starts to fly in the path of the tube without smashing into the walls every other second. Thus, creating a field.
All this culminates to the fact that in order to keep a field running for any meaningful amount of time, you need humans hooked up to a bio computer 24/7.
However, trying to replicate the same system using something like rubber tubes and a normal computer fails for inexplicable reasons. Similarly, running it through a bent tube with compressed air pushing it doesn't do anything either.
Why is my bio-organic computer the only thing capable of manipulating my special particle?
One can add features to the bio computer if need be. One can also chose the size of the particle; however, it must be smaller than the tip of a very fine needle.
Notes:
- The bio computer cannot and will not work if it's not connected to a person. It enters a hibernation state of sorts when disconnected. Trying to emulate human brain signals or activity using electrodes or wires has proven fruitless. It can tell when it's attached to a human. Data can be copied/sent over from one bio computer to another or to a digital/mechanical data processor to record information.
- The particle itself has to oscillate to generate a field. Throwing it in a box, and then moving the box up and down doesn't actually do anything since the particle is just moving in its environment (or not at all if you take the frame of reference to be in the box itself). A spring doesn't oscillate when you throw it into a black box and shake it a bunch. But it does when you pull on the spring and let it go. Same deal here.
- If one wants to use electrical, magnetic or radiation fields, they can't be high enough to the point that it kills off a human being. This particle is doing its rounds in a bio computer plugged into a human after all.
- The bio computer is capable of doing operations without the use of an electrical charge (though it primarily relies on neurons). There exists a stringy like substance that can be pulled like rope on a pulley. In this case, mechanical (or even fluid) energy can be used to do something.